<!--********************************************************************
* by jiawanlong
*********************************************************************-->

<!DOCTYPE html>
<html>

<head>
    <meta charset="UTF-8" />
    <link rel="stylesheet" href="./../../cesium/Cesium1.98/Widgets/widgets.css">
    <script type="text/javascript" src="./../../cesium/Cesium1.98/Cesium.js"></script>
    <script src="./jquery-1.8.3.min.js"></script>
    <style>
        input {
            position: absolute;
            top: 10px;
            left: 10px;
        }
    </style>
</head>

<body style="margin: 0; overflow: hidden; background: #fff; width: 100%; height: 100%; position: absolute; top: 0">
    <div id="map" style="margin: 0 auto; width: 100%; height: 100%"></div>
    <input type="range" min="-100" id="inp" max="100" value="0">

    <script type="text/javascript">

        Cesium.Ion.defaultAccessToken = 'eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJqdGkiOiI3ZjQ5ZGUzNC1jNWYwLTQ1ZTMtYmNjYS05YTY4ZTVmN2I2MDkiLCJpZCI6MTE3MTM4LCJpYXQiOjE2NzY0NDUyODB9.ZaNSBIfc1sGLhQd_xqhiSsc0yr8oS0wt1hAo9gbke6M'
        const viewer = new Cesium.Viewer('map', {});
        let yszb;

        // 开启帧率
        viewer.scene.debugShowFramesPerSecond = true;

        const tileset = new Cesium.Cesium3DTileset({
            url: "./data/tileset.json",
        });

        tileset.readyPromise
            .then(function (tileset) {
                viewer.scene.primitives.add(tileset);
                viewer.zoomTo(tileset)

                // 打印出当前模型的位置
                console.log(getModelInfo())
                ysgd = getModelInfo()
                var cartographic = Cesium.Cartographic.fromDegrees(ysgd.x, ysgd.y, ysgd.z);
                var posi = new Cesium.Cartographic(cartographic.longitude, cartographic.latitude)
                var height = viewer.scene.globe.getHeight(posi)
                changePosition(ysgd.x, ysgd.y, height, 0, 0, 0, 1)
            })
            .catch(function (error) {
                console.log(error);
            });

        // 获取模型信息
        function getModelInfo() {
            var result = {};

            var boundingSphere = tileset.boundingSphere;
            var position = boundingSphere.center;
            var catographic = Cesium.Cartographic.fromCartesian(position);

            var height = Number(catographic.height.toFixed(2));
            var longitude = Number(Cesium.Math.toDegrees(catographic.longitude).toFixed(6));
            var latitude = Number(Cesium.Math.toDegrees(catographic.latitude).toFixed(6));
            result = {
                x: longitude,
                y: latitude,
                z: height,
                heading: 0
            };

            var mat = Cesium.Matrix4.fromArray(tileset._root.transform);
            var pos = Cesium.Matrix4.getTranslation(mat, new Cesium.Cartesian3());
            var wpos = Cesium.Cartographic.fromCartesian(pos);
            result.x = Number(Cesium.Math.toDegrees(wpos.longitude).toFixed(6));
            result.y = Number(Cesium.Math.toDegrees(wpos.latitude).toFixed(6));
            result.z = Number(wpos.height.toFixed(2));
            return result;
        }
        // ----------------------------更改位置------------------------------
        // rx: 俯仰(pitch)，机头上下摇摆
        // ry: 滚转(roll)，机身绕中轴线旋转
        // rz:偏航（heading），即机头朝左右摇摆
        // scales放大系数
        function changePosition(tx, ty, tz, rx, ry, rz, scales) {
            let params = {
                tx,
                ty,
                tz,
                rx,
                ry,
                rz
            };
            let mx = Cesium.Matrix3.fromRotationX(Cesium.Math.toRadians(params.rx));
            let my = Cesium.Matrix3.fromRotationY(Cesium.Math.toRadians(params.ry));
            let mz = Cesium.Matrix3.fromRotationZ(Cesium.Math.toRadians(params.rz));
            let rotationX = Cesium.Matrix4.fromRotationTranslation(mx);
            let rotationY = Cesium.Matrix4.fromRotationTranslation(my);
            let rotationZ = Cesium.Matrix4.fromRotationTranslation(mz);
            //平移
            let position = Cesium.Cartesian3.fromDegrees(params.tx, params.ty, params.tz);
            let m = Cesium.Transforms.eastNorthUpToFixedFrame(position);

            let scale = Cesium.Matrix4.fromUniformScale(scales);

            // //缩放
            Cesium.Matrix4.multiply(m, scale, m);
            //旋转、平移矩阵相乘
            Cesium.Matrix4.multiply(m, rotationX, m);
            Cesium.Matrix4.multiply(m, rotationY, m);
            Cesium.Matrix4.multiply(m, rotationZ, m);
            // return m;
            console.log(JSON.stringify(m))
            tileset._root.transform = m;
        }


        $("#inp").change(() => {
            let v = $("#inp").val();
            changePosition(ysgd.x, ysgd.y, ysgd.z + Number(v), 0, 0, 0, 1)
        })
        // 深度监测
        viewer.scene.globe.depthTestAgainstTerrain = false;

        // changePosition(121.5480435,25.0421187,13,0,0,20,1)

        viewer.zoomTo(tileset)

        // 修改位置
        // changePosition(120,40,-100000,0,0,0,2)

        // 修改模型颜色等
        // var r = 255;
        // var g = 0;
        // var b = 255;
        // var a = 0.9;
        // tileset.style = new Cesium.Cesium3DTileStyle({color: "color('rgba(" + r + "," + g + "," + b + ", " + a + ")')"})

    </script>
</body>

</html>